UIWebView goBack crashing

Question

I have the following setup

webview = [[UIWebView alloc] initWithFrame:[UIScreen mainScreen].bounds];

Occasionally I issue the method

[webview goBack]; 

and this sometimes brings my app down in flames with EXC_BAD_ACCESS (SIGBUS). I tried to wrap this around a @try:

@try
{
    [webview goBack];
}
@catch (id theEx)
{
    NSLog(@"%@", theEx);
}

but this still brings tears of grief.

Is there a way I can make sure it does not crash? Perhaps checking if I can in fact go back?

Answer 1

EXC_BAD_ACCESS usually means that webview was somehow dealloc'd. Why are you using [UIScreen mainScreen].bounds]? You should use Interface Builder or set the frame to the superview's bounds. You're adding the view to a superview controlled by a view controller, right?